Boron-doped activated carbon material

Abstract

An anode material for a lithium ion secondary battery that is obtainable by a method comprising: preparing a raw material of the anode material selected from high oxygen containing carbons, heat treating the raw material at a temperature of 550° C. to 850° C. under oxidizing atmosphere to form having a multi-channel carbon material and doping boron into the multi-channel carbon material.

1 . A process for manufacturing an anode material for a lithium ion battery comprising:
 preparing a raw material of the anode material selected from high oxygen containing carbons;   heat treating the raw material at a temperature ranging from 550° C. to 850° C. under oxidizing atmosphere to form a multi-channel carbon material; and   doping boron into the multi-channel carbon material.   
     
     
         2 . The process as claimed in  claim 1 , wherein the doping boron into the multi-channel carbon material comprises mixing the multi-channel carbon material with a boron containing compound in a mole ratio of 1:0.5 to 1:1 and then heat treating under a nitrogen atmosphere. 
     
     
         3 . The process as claimed in  claim 2 , wherein the heat treating comprises a first heating step at a temperature ranging from 250° C. to 350° C., a second heating step at a temperature ranging from 400° C. to 650° C. and a third heating step at a temperature ranging from 650° C. to 900° C. 
     
     
         4 . An anode material for a lithium-ion battery comprising the carbon material obtained by the method according to  claim 1 . 
     
     
         5 . An anode material for a lithium-ion battery comprising the carbon material obtained by the method according to  claim 2 . 
     
     
         6 . An anode material for a lithium-ion battery comprising the carbon material obtained by the method according to  claim 3 .